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Telegraphic Cipher Code: Gerrish System


Published 1906
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Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.


Publisher The Observatory
Year 1906
Pages 27
Possible copyright status NOT_IN_COPYRIGHT
Language English
Digitizing sponsor Google
Book from the collections of Harvard University
Collection americana
Notes "The system and code were devised by Mr. Willard P. Gerrish, of this Observatory, who has prepared the following description and instructions." -- Pref.

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